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Defect Inspection Engineer (f/m/d)

Black Semiconductor GmbH · Aachen, Germany · posted 2026-10-24
<p style="min-height:1.5em"><strong>Your Role</strong></p><p style="min-height:1.5em">As a Defect Inspection Engineer/Expert, you will be responsible for ensuring the defect-free quality of semiconductor wafers using Automated Optical Inspection (AOI) systems and unpatterned wafer inspection.</p><p style="min-height:1.5em">You will detect defects such as particles, scratches, haze, and surface roughness that could impact the yield of our integrated graphene photonics process flow. Working in a cleanroom environment, you will collaborate with process, equipment and integration teams to set up, qualify and optimize inspection recipes, troubleshoot issues, and continuously improve defect detection and classification.</p><p style="min-height:1.5em"><strong>What You’ll Do</strong></p><ul style="min-height:1.5em"><li><p style="min-height:1.5em">Perform AOI and unpatterned wafer inspection on materials such as bare silicon, epitaxial layers and polished wafers</p></li></ul><ul style="min-height:1.5em"><li><p style="min-height:1.5em">Set up, qualify and optimize inspection recipes</p></li></ul><ul style="min-height:1.5em"><li><p style="min-height:1.5em">Fine-tune inspection tool and recipe parameters to improve defect-detection sensitivity, inspection quality, repeatability and overall performance</p></li></ul><ul style="min-height:1.5em"><li><p style="min-height:1.5em">Analyze defect data to identify trends, root causes and potential process excursions</p></li></ul><ul style="min-height:1.5em"><li><p style="min-height:1.5em">Interpret defect data and translate findings into actionable insights for process teams</p></li></ul><ul style="min-height:1.5em"><li><p style="min-height:1.5em">Generate defect maps, Pareto charts and reports to communicate findings</p></li></ul><ul style="min-height:1.5em"><li><p style="min-height:1.5em">Participate in Design of Experiments (DOE) to optimize inspection parameters</p></li></ul><ul style="min-height:1.5em"><li><p style="min-height:1.5em">Troubleshoot inspection-related issues and support continuous improvement in defect detection and classification</p></li></ul><ul style="min-height:1.5em"><li><p style="min-height:1.5em">Collaborate with process, equipment and integration teams</p></li></ul><p style="min-height:1.5em"><strong>What You Bring</strong></p><ul style="min-height:1.5em"><li><p style="min-height:1.5em">A bachelor’s degree or above in electrical engineering, materials science, physics or a related field</p></li></ul><ul style="min-height:1.5em"><li><p style="min-height:1.5em">5+ years of experience in semiconductor inspection, with a focus on AOI and unpatterned wafer inspection</p></li></ul><ul style="min-height:1.5em"><li><p style="min-height:1.5em">Hands-on experience with unpatterned wafer inspection systems, such as SPx, and AOI tools such as Eagle or Dragonfly</p></li></ul><ul style="min-height:1.5em"><li><p style="min-height:1.5em">Understanding of semiconductor process flows, including polishing, epitaxy and cleaning</p></li></ul><ul style="min-height:1.5em"><li><p style="min-height:1.5em"

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